CentOS，它对yum-config-manager

Question

该图显示我已安装yum-utils，但我也无法使用yum-config-manager命令。
在编写命令yum-config-manager时，它显示yum-config-manager: command not found。

以下命令的输出
yum search yum-config-manager

显示

Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: mirror.vpsnet.com
 * epel: mirror.vpsnet.com
 * extras: mirror.vpsnet.com
 * remi-safe: mirror.23media.de
 * updates: mirror.vpsnet.com
 * webtatic: uk.repo.webtatic.com
========================= Matched: yum-config-manager ==========================
remi-release.noarch : Configuration de YUM pour le d?p?t remi
yum-utils.noarch : Utilities based around the yum package manager

如何在此方案中使用yum-config-manager？